Home / 280,455,029.96-386,827,219.44-196,841,818.04

Finding the Fourth Proportional to 280,455,029.96, 386,827,219.44 and 196,841,818.04

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Solution

The fourth proportional to 280,455,029.96, 386,827,219.44 and 196,841,818.04 is: 271,500,829.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,455,029.96 : 386,827,219.44 = 196,841,818.04 : x
  2. Step 2: Convert to fraction form
    280,455,029.96/386,827,219.44 = 196,841,818.04/x
  3. Step 3: Cross multiply
    280,455,029.96x = 386,827,219.44 × 196,841,818.04
  4. Step 4: Simplify right side
    280,455,029.96x = 76,143,773,141,927,632
  5. Step 5: Solve for x
    x = 76,143,773,141,927,632/280,455,029.96
  6. Step 6: Final answer
    x = 271,500,829.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.